Enum LoadError 

#[non_exhaustive]
pub enum LoadError {
    Io(Error),
    UnexpectedEof {
        offset: usize,
        needed: usize,
        available: usize,
    },
    UnsupportedVersion(u16),
    ChecksumMismatch {
        expected: u32,
        found: u32,
    },
    InvalidTypeTag(u8),
    SizeMismatch {
        expected: usize,
        found: usize,
    },
    InvalidUtf8,
    InvalidChar(u32),
    ImplausibleLength {
        declared: usize,
        remaining: usize,
    },
    LegacyNestedArray,
    Table(TableError),
    Insert(InsertError),
}

Something went wrong while reading a database file.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Io(Error)

Available on crate feature std only.

The file could not be opened or read.

Only produced by Database::load, so it exists only with the std feature; Database::from_bytes never returns it.

UnexpectedEof

The file ended in the middle of a value.

Fields

offset: usize

Byte offset the read started at.

needed: usize

How many bytes were needed.

available: usize

How many bytes were actually left.

UnsupportedVersion(u16)

The file carries a SafeEn magic number but an unknown format version.

ChecksumMismatch

The stored checksum does not match the payload.

Fields

expected: u32

Checksum recorded in the file.

found: u32

Checksum computed from the payload.

InvalidTypeTag(u8)

A type tag in the file does not correspond to any TypeDefs.

SizeMismatch

A value’s declared byte width does not match its type.

Fields

expected: usize

Width the type requires.

found: usize

Width recorded in the file.

InvalidUtf8

A string field was not valid UTF-8.

InvalidChar(u32)

A char field did not hold a valid Unicode scalar value.

ImplausibleLength

The file declares a length that cannot be satisfied by its remaining bytes.

Fields

declared: usize

Length declared in the file.

remaining: usize

Bytes actually remaining.

LegacyNestedArray

A legacy (v1) file used a nested array type, which v1 cannot represent.

Table(TableError)

The file’s table definitions were rejected.

Insert(InsertError)

The file’s row data did not match its own table definitions.

Trait Implementations

impl Debug for LoadError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for LoadError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for LoadError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for LoadError

Available on crate feature std only.

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<InsertError> for LoadError

fn from(e: InsertError) -> Self

Converts to this type from the input type.

impl From<LoadError> for DurableError

fn from(e: LoadError) -> Self

Converts to this type from the input type.

impl From<TableError> for LoadError

fn from(e: TableError) -> Self

Converts to this type from the input type.